The roller guard is in contacts with the track link in the one part.
•The side surface of track link pin - the inner surface of roller guard
Figure 1 Contact between the roller guard and track links
In order to prevent the track link from derailing from its pass, roller guard contact can be defined. Each track link pin contacts the inner surfaces of roller guard. After the roller guard geometry is created, the Assembly Information must include name of roller guard that may contact the track system.
Figure 2 Roller guard contact